The 22-year-old was part of a gang which admitting stealing thousands of pounds-worth of jewellery in a raid at Loveweds Jewellers in Harpenden High Street in March.

During the robbery a member of staff was forced into a car and had his shop keys taken so the gang could gain access to the goods.

Accomplice Ashley Latimer-Bassill, 24, of Crane Mead in Ware, was also jailed for six years while Daniel Stanley, 24, of Travellers Lane in Hatfield, was sentenced for five years.

Daniel Stanley was jailed for five years

Detective Sergeant Carolyn Taylder said: “This was a terrifying ordeal for the victim who was held captive by the group while they stole thousands of pounds-worth of jewellery for their own personal greed.

“It was a pre-planned enterprise however our investigation was fast-moving and some excellent detective work led to three arrests being made within just a few days of the offence taking place.

“This result sends out a clear message that robbery will not be tolerated in Hertfordshire. We hope also that the jewellers’ staff and their families can take some comfort from it.”